Bluelab® pH Probe Inline Grow Medium Contains Citric Acid

Contains Citric Acid

1/10 of the weight of a bag of potting soil

Proper light transmission will aid in optimal crop growth

Use For Flowering

and Titan Controls ventilation controllers for optimal results

Bluelab® pH Probe Inline Grow Medium Contains Citric AcidBluelab pH Probe Inline: Replacement Probe for Bluelab Guardian Monitor Connect Inline The Bluelab pH Probe Inline is a replacement probe for the Guardian Monitor In Line. Unfortunately, pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a month), you will extend its life. Replace only the pH probe, not the whole meter! Features Double junction